Data, Hardware, Output, Network, Storage

1. Flash Card 2Type Drill 2 Data, Hardware, Output, Network, Storage The processing results, seen on a monitor or printed on paper. Output • Refers to the way in which letters, numbers, and symbols represent facts, objects, or ideas. Data The mechanical, magnetic, and electrical components making up a computer system; anything on or in the computer that is touchable. Two or more computers and other devices (printers and scanners) that are connected, for the purpose of sharing data and programs. • Area of the computer that holds data on a permanent basis when it is not immediately needed for processing.

2. Computer Hardware & Performance Computer Technology Day 2 pg. 7-10

3. Computer Hardware

4. System Unit • The case that holds the power supply, central processing unit, storage devices, and all circuit boards. • Key Word: Case

5. Central Processing Unit (CPU) • Where the processing in a computer takes place, often called the brain of the computer. • Key Word: Brain • Housed on the motherboard (the main circuit board of the computer)

6. Input Devices • Units that gather information and transform that information it into a series of electronic signals that a computer recognizes. • Key Word: Gather information

7. Keyboard • The arrangement of letters, numbers, and special function keys that act as the primary input device for a computer. • Key Word: Arrangement

8. Mouse • An input device that allows the user to manipulate objects on the screen by moving the device along a surface. • Key Word: Device

9. Sound Card • An input device that is a circuit board giving the computer the ability to accept audio input, play sound files, and produce audio output. • Key Word: Audio input

10. Modem • An input device that makes possible the transmission of data to or from other computers over telephone or cable lines. • Key Word: Telephone or cable

11. Output Devices • Units that transform electronic signals into information that can be displayed or printed. • Key Word: Displayed or printed

12. Monitor • Output device that forms an image by converting electrical signals from the computer into points of colored light on the screen. • Key Word: Colored light • Types of Monitors • CRT – Cathode-Ray Tube • A vacuum tube in which a hot cathode emits a beam of electrons that allow an image to be displayed. • Very heavy and fairly inexpensive. • LCD – Liquid Crystal Display • A liquid-crystal film, sealed between glass plates that move when electricity is applied. • More expensive and a better display of images.

13. Storage Devices • Output devices that are used to keep data when the power to the computer is off. • Different forms • Hard drive • Floppy or zip disks • CD-Burner • Jump Drives • Key Word: Keep data

14. Printer • Output device that produces text or graphical images on paper. • Key Word: Paper • Laser Printers • A printer that uses a laser to produce an image on a rotating drum before transferring the image to paper. • Generally known for fast printing and high resolution. • Ink-Jet Printers • A printer that sprays ink onto paper creating text or images. • Generally known for photo quality printing.

15. Speakers • Output devices that receive signals from a sound card in order to hear sound effects. • Key Word: Sound effects

16. Computer Performance

17. Boot Process • Sequence of events that occurs between the time you turn on a computer and the time that it becomes ready to accept commands. • Key Word: Sequence • Purposes • Runs a diagnostic test to make sure everything is working. • Loads the operating system, so basic operations can be completed.

18. Circuits • The paths from one component of a computer to another that data uses to travel. • Key Word: Paths • Circuits run between • Memory and the central processing unit. • Memory and the storage devices.

19. Silicon Chip • Silicon is melted sand and what circuits are embedded into to keep them together. • Key Word: Sand

20. Megahertz (mHz) • A measurement used to describe the speed of the system clock. • Key Word: System Clock • A megahertz is equal to one million cycles (or pulses) per second. • 1.2 MHz means 1.2 MILLION cycles per second. • 1.3 GHz means 1.3 BILLION cycles per second.

21. Pentium • A name given to the 5th generation of the Intel central processing unit. • Key Word: 5th • Other names for the processor generations were called • 80-88 / 286 / 386 / 486 / Celeron

22. RAM • RAM means “Random Access Memory”. • The ability of a computer to process information and save data to the location specified. • Key Word: Ability • RAM is very volatile. • It cannot hold data when the power is off. • Looses all data if the power goes out suddenly.

23. ROM means “Read only memory”. When data can be read from a file, but a user cannot change or modify the data. Key Word: Cannot modify ROM

24. Binary Numbers • An electronic or digital method for representing letters or numbers using two digits, 0 and 1. • Key Word: Two Digits • Bit • Each 0 or 1 • Key Word: Each • Byte • 8 bits • Key Word: Eight

25. Memory Measurements • Bit • Each 0 or 1 • Byte • 8 bits • Kilobyte • Approximately 1,000 bytes • Exactly 1,024 bytes • Megabyte • Approximately 1 million bytes • Exactly 1,048,576 bytes • Gigabyte • Approximately 1 billion bytes • Exactly 1,073,741,824 bytes • Terabyte • Approximately 1 trillion bytes

26. Resource “Audit My PC.com.” 2006. 4 Nov 2006 http://www.auditymypc.com/acronym/CD-ROM.asp. "Dictionary.com." 2006. Lexico Publishing Group, LLC. 1 Nov 2006 <http://www.dictionary.com>. “Look Smart.” June 1997. Look Smart, Ltd. 4 Nov. 2006 http://www.findarticles.com/p/articles/mi_m1365/is_n11/v27/ai_19470419.> Parsons, June Jamrich, and Dan Oja. Computer Concepts. Boston: Course Technology - Thompson Learning, 2002. “Webopedia.” 6 Nov 2006 <http://www.webopedia.com/DidYouKnow/Hardware_Software/2002/FiveGenerations.asp>.